tonight barack obama is en route to south africa. david cameron, tony blair and many others will always be arriving in the morning. the forecast for tomorrow is rain, but that seems unlikely to spoil the mood of what promises to be one of the grandest and most heart-felt send-offs of the modern era. andrew harding, "bbc news," johannesburg. >> as world leaders arrive for that memorial, his daughter recalls his final moments. this week newspapers and magazine around the globe are celebrating the memory of nelson mandela with images. for the new yorker, it is this portrait by the artist, kadir nelson. he has illustrated children's books, and he spoke to us about the message he hopes his painting will convey. >> i wanted to show that fire that he had as a young man. it is a very graphic image. it has a lot of red and yellow in it in homage to the fire he had to fight the fight for freedom. my name is kadir nelson, i am an artist, illustrator and author. i created the artwork for the new yorker coffer, and i wrote -- cover, and i wrote a